Which TCP port does Erlang use to connect to a remote node device?

Question

I need to open a firewall port so that I can connect from one Erlang node to another. Is there a standard port?

Answer 1

You can limit the TCP ports used by Erlang to a specified interval using the following kernel application. Parameters:

erl -kernel inet_dist_listen_min 9001 inet_dist_listen_max 9005

You also need to enable the 4369TCP port since it is used by epmd . (This port can also be changed using an environment variable ERL_EPMD_PORT.)